Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con cua cuc snippets" » "cong cua cuc snippets", "co cua cuc snippets", "dong cua cuc snippets", "con cua cac snippets", "con cua cu snippets", "con cua duc snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("con cua cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con cua cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con cua cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con cua cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.